Method and means for producing motion-pictures.



C. A. L. GEHRMANN.

' METHOD AND MEANS FOR PRODUCING MOTION PICTURES.

1,32a,is0.

Patented Nov. 25, 1919.

UNITED STATES PATENT OFFICE.

cnannns A. r... onnnmann, or sr'nniorinLn, uninors.

METHOD AN D MEANS FOR PRODUCING MOTION-IPICTURES.

-hcin either sensitized so as to secure photograp lic registration of the series of images, or else being of a light reflecting nature 'so tin t a large number of people may view the suclre. ive images.

In lices of this nature heretofore used, when a 'normal or caricature pictures were desired it has often been necessary either to construct abnormal or special objects to photograph or else to draw each successive image and photogra h the same, both of which methods usual y entail great expense.

It is the general object of this invention In provide a simple structure which may be' used either in connection with motion turc cameras or projecfion apparatus the production of abnorpial or distorted pictures.

- A further object of this invention is the production of apparent motion of objects when both the camera and the objects are stationary.

Other objects of the invention will appear as the construction is more fully (llS- closed.

For the purpose of rendering the invention more clear, reference is had to the accompanying drawings, in which Figure 1 shows one form of the invention in structural rclationwith a motion picture camera.

Figs. 2 and 3 show enlarged sectional views of the device and Fig. 4 a modification thereof.

As illustrated, a motion picture camera casing 1 contains the film feed and winding rolls 2 and 3 which feed the film 4 into the optical plane 5 by means of the guide rolls 6 and the feed wheel 7. This feed wheel is driven in the usual manner by a master gear 8 fitted with pins 9 which coiipernte with th 10 of the feed wheel 7, thereby impm to the same an intermittent rotation,

Speification of Letters Patent.

Patented Nov. 25, 1919.

Application filed March 16, 1917. Serial No. 155,289.

which motion serves to bring successive portions of the film 4 into the optical plane. The master ear 8 which is rotated by a handle located on the exterior of the camera casing, also serves to impart motion to the rotary shutter 12 by means of the .worm gearing 11. Located in the front of the camera in direct alinement with the optical plane is a boss or projection 13 adapted to receive the various lens mountings such as are used in motion picture work. The particularlens mounting shown in Fig. 1 and in greater detail in Figs. 2 and 3, consists primarily of a tube or cylindrical member 14 inside of which is mounted a second tube or c lindrical member 15. This member is can rled by the ball bearings 16 and may be rotated b means of the worm gearing 17 a'ctuate by the handle or crank 18. Removably fitted to the interior of the tube 1.3 is a. lens cell 19 in which is mounted a dis tortion or unsymmetrical lens 20. This interchangeable distortion lens ma be of any type and may be designed to pro uce an degree or character of distortion in a manner well known to those skilled in the art, the design and construction of this lens in no wa afl'ecting the scope of the present invention.

It will now be evident that if the camera be placed in front of a suitable object and the drive wheel 8 rotated, the distortion lens of the successive images will continually change. thereby producing new and curious effects in the motion picture. If desired the crank 18 could be connected by suitable mechanism to the drive wheel 8 so. as to be driven by the same. The modification illustrated in Fig. 4 shows -the lens mount 14 supported by a member 21 held in a bracket 22 in front of the objective of the camera 23. The lens used in this modification is a supplemental lens and the structure as, shown enables the operator to make use of the distortion lens at any time without stopping the camera to remove the objective from the camera.

It should be 'further understood that while my invention as set forth in the drawings is shown in connection with a motion picture camera, that its use is in no way limited to the same as it is evident that n combination of lenses such as have been set forth could be used with jection apparatus, the distortion lenses being either substituted for, or used supplemental to the projection lens of-the pro ection apparatus.

What I claim is:

1. in a motion picture camera, the com bination with a movable sensitized surface adapted to receive a series of photoiiraphic impressions, of an unsymmetrical ens-so, located with reference to the plane'of the film as to produce a distorted image thereon, means to successively expose portions of the sensitized surface to the ima and means to continuously rotate the said unsymmetrical, lens so as to produce a progressive change of the plane of distortion in the series of photographic. impressions registered upon the m.

2. In a motion picture camera, the combination with a movable sensitized surface, of an objective lens adapted to graduce an image in the plane of said sur insane to move the sensitized surface and to ihotographically register u n. said sur ace a series of impressions 0 said image an unsymmetrical lens located in front 0 the objective1ens to produce distortion in the image and means to progressively rotate the uns mmetrical lens about the axis of the objective lens whereby distortion in the series motion picture pro 1 ,aaeneo Y of impressions registered upon the sensitized surface 15 continuously changed.

3. In a motion picture camera, the combination with a movable sensitized surface 7 adapted to receive a series of photographic impressions, of an unsymmetrical lens so located with reference to the plane of the sensitized-surface as to produce a distorted i image thereon, means to successively expose ions of the sensitized surface to the im- '7', and means to continuously, move the unsymmetrical lens so as to produce a continuous change of distortion in the series of photographic impressions registered upon the m; t

4. In a motion picture camera, the combination with a movable sensitized surface adapted to receive a series of photo aphic impression of an unsymmetrical ens so located wit reference to the plane of the 1m portions of the sensitized surface to the image, and means'to'continuously move the unsymmetrical lens so as to tinuous change of angular distortion in the series of photographic impressions registered upon the 1m.

In testimony whereof I have hereunto set my hand.

CHARLES A. L. GEHRMANN.

sensitized surface as to produce a distorted I thereon, means to successively expose' roduce a con- 

